Hello Andrey!

recently i found out about an issue with the Viewer, might it be possible to fix the update proces while using plugins like the comboboxList?

Please see the example pictures and you see the posibilities of the second list don't change
with the selection made in the first one, wich is non of a problem using
the file with SMath Studio... only with the Viewer it fails.

Thanks a lot for concerning!
I'd appreciate your help very much!







example.zip (429kb) downloaded 35 time(s).

What do you think Andrey to put then invert() function as well in the exception?

Function transpose() will get into the operator but invert() will not. Therefore, there is quite a difference between rising a matrix to a negative power inside vectorize() and having invert() inside vectorize(). For example, we have abs() and det() but inside vectorize() there is visually no difference.

I also hope this will not open some other issues regarding the vectorize() function.

Regards,
Rdovabn

Edited by user 09 March 2016 09:18:21(UTC)  | Reason: Not specified

Jean,
thanks a lot for sharing ...your approach with the algo technique of passing a function ..to a function is very interesting .
It is something I had never thought that was possible to do, it is very elegant and concise.

Thanks again and best regards

Franco

thanks Andrey,
Your explanation convinced me. And now I think it is not appropriate to satisfy the misuse that I had indicated: only a shortcut.
Reading the posts received later we understand that the introduction of function vectorize() has created a bit of movement And this is very interesting.

sergio

That's an interesting and clean approach

Since eval() force evaluation in place, maybe a novectorize() [like noparse in bbcode] may be an alternative to keep the symbolic data



P.S. Still no ideas about this error?

Edited by user 09 March 2016 23:28:24(UTC)  | Reason: link fixed

maybe simply symb() ...


I miss the point here, you can pass almost whatever you want to the plugins...

I'm not sure if this had been asked:
Currently, it's impossible to create a function like

f(M)=sum(M)

because sum takes only matrices, and M here is unknown type.
Using, say, augment(), which return type is known to be a matrix, I can do this:

f(M)=sum(augment(M))

I cannot use vectorize(), because its return type may be scalar like in vectorize(1), or system.
Though I can use it with eval().

The question is, is it possible to make vectorize always return matrix? When argument is a operation on system, for example, the result type differs from input. Having this could allow for such constructs without evals.
Or maybe allow sum to accept any type of input, making it return input itself if it's scalar/system/string?

Edited by user 22 March 2016 06:13:58(UTC)  | Reason: Not specified

Vectorise is specific to Mathcad, then new to Smath.
A risky new bugger that does not speak, won't match
Mathcad either ... and almost impossible to exhaust.
We can expect more and more of that in the Forum.

Jean

Thank you Jean for attention.

Though when I read things like that:



I start to think that you want to be rude.
I have it wrong both ways? What do you mean by that? Have you read that carefully? First way I get absolutely correct matrix of original numbers raised to power (-2). How is that incorrect? Or do you think that you know my requirements better?

Your method works, and fine. I have mine, working too. But what I write about isn't call for help "Hey! I'm lost in two trees! How do I calculate them?", but a proposal to enable more powerful use of new shiny feature.

"linterp what ? you just have the Y vector !" - I wrote that if some of my function internally uses linterp for some reason, it currently automatically isn't fit for use inside vectorise.

I'm trying to replace a number of loops in my files that are used to fill matrices, with a cleaner syntax of vectorise. And I meet with some limitation that MAY be curable if Andrey decides that it's possible (and that's not too difficult taking into account his code).

Specifically, I attach a file that I tried to cleanup today. One of loops is marked by magenta. It's impossible to rephrase it like is shown to the right of it on margin (highlighted by red), though both Q and t are vectors that I want to be used one-by-one, to get resulting vector of formula results. The problem is that the functions that are used in my top-most function use *interp() on some other matrices, and that makes this syntax illegal. I dream of a proposed here "novectorize" or suchlike...

Regulirujushchijj klapan.sm (233kb) downloaded 43 time(s).

About foo1 and foo2 you can avoid the evaluation on assignment using a programming function (line()); no ways to use vectorize on linterp

foo.sm (21kb) downloaded 51 time(s).

Any further improvement on vectorize is welcome from my side

Edited by user 23 March 2016 01:47:59(UTC)  | Reason: Not specified